Apparatus for testing milk and milk products.



1,1. MOONNIER.

APP/mms FOR TESTJNGMILK ANU MILK PRODUCTS.

APPLICATION FILED APR.12. 1915.

VENTOR.

nti

. i6 may vbe (if www@ .To @ZZ whom ai may @Mmmm it known #Limi ii., lmzim Jorim Mmmm mm, a citizen of iii@ Uniteii 'amlaes, rsii ing at Chicago, in the cnuifny @if @ook :imi Stai@ of illinois, have invened sind, diswv zi-ed certain new and useiui hammam-mts in Apparatus im* Tsting Milk and Milk Pmdlits, @if which the ioiiowig i@ si, spefi cziimi.

Tha process ci" test with which 'tim present invention is espeiziiy used. is; carried om; by mixing the milk oi? mik vWwfuv, with :i fait soli/'enits ai; th@ mm@ time fiisiviiiigg iii@ albumin, aseim, miiiwsugar, am, aiwi'feei'fy causingihe fait? iin. sniiiizinn, i0 ikofil; ipmiiii@ i'emziindei @il the mimiira, so that ii; @am 'ma Witiidirawzi, the Lim; soivfeii. evaipomim :mei th@ rgsidiu@ weighed. i

The, exmcti'on Hash: qiixxaiiig die s inject mattei hereof :imi u. im mmryingf @uit the, above 5e-,si is designed m pen..

a, 'speedy separation of the fm: im sciuiiom mid. 'the iieady Yemeni/ai hemuf from h@ flask with out disaurhiiig the fammi 'Fui'theimo'ra ith@ mnizitiim mi" tiwizik mich i?, may be centri'uged9 wel! :is when and otherwise iiiaiiipui mi siiiiuim'- mousiy with ai number @i @thurs like ii..

Figgm i eievzitin'n, Wb@ used in the 'gi-resem 1kg/six;

2 if?, a similar View 0i? al mod iiad form iimioi' sieri-ing; mow partcula-ky tu th@ iiia'ffwh {Fig` i), the 'mbe .Qxcrzwiisig fat m7 milk' pwducts, cmuis: mm Mimi wmmimf.

Simp auch i8 whebi'eby fiom' thmugh Miri.,

mmging im@ a, neck 13% "which cinma?. by'

ai smppm iai mid Qomitedl with :i smaller 0i' iwei chamber ila by i @mimetica ma. This form of tube, howver, (inves nari, inw@ a, neck im the lower dumber ila. fm. out'- it oi discharge tub@ i7 exiznds imm ich@ Gn-imtmction 12 sind is provided with ai. stop @auch 8% This @niiet or dschm'ge tub@ ii'm appi'oximaieiy straight; except ai, im wie? emi, Where it curva@ downwardiy. f

in carrying out the present test, fiv@ (5) mi milk. 0r other milk or dzi'y 'pi-@dimi is pige-@d in either *miba (Figs- 1, m: 9.), is@ whih is added ammmiia. wizera etbyi aimiiio, iigioin, moi ethyl ether, iii like fuw img; projpiiiiim:

ci ammonia. Water.

im "ing out iii@ pi'snt pmew mib momia 'fi/aim', ethyl icohol, @thyi @.Lhi :imi iiggron am added? preffiiabiy in @he orfim, mmad :imi the Hash: or tube Shaken mimi' auch afiifuion.

i'. been ifoumi that the ammonia waiter and @thy/1i aicohoi dissnive, iii@ zi'bumin, csisin, mili: sugar, uic., while the ethyl eiziiei zmdigmin dissolve iii@ fat and clarify this solution, hereby creating u shzwpniine of mim-imi ii, .Lliypiiciii'timi mail Mauril Ml, MMM. i @mimi No. ms'ii. v

ai (i @Upper (iii m' i'-P) is inf-mimi :uni the whe;

piace@ in nmiiififugfj@ mai @@niiiugg'mi im approximates@ @ne mimu, m facil :ite im mally consumed in settling the mixture and of the fat, and Weighs, rather than measures, 60

causes the fat, in solution, to be sharply separated from the other constituents of the mixture. This line of demarcation between the fat, in solution, and the other constituents, is indicated by the linea-, Fig. 1, and the lineJ y-/y Fig. 2. In the form of extracting tube illustrated in Fig. 1, the

level of this line of demarcation a-w can be raised Aor lowered by the movement of the stopper 16, and by this means the level of the contents of the settling chamber 11 lcan be adjusted so that it is located nearly 'ing ofthe stop cock (18 or 18a) permits the fat, in solution, to How from the chamber (10 or 10a) of the lextracting tube through the outlet or discharge (17 or 17a).

The fat, in solution, is discharged through filter paper into a previously weighed aluminum dish which rests upon a hot plate, which causes the solution to boil briskly as it enters the dish, thereby driving oif the fat solvents (ethyl ether and 1igroin).` More ligroin and ethyl ether may be placed in the tube, which is again shaken and centrifuged, andthe clean solution, containing fat, filtered into the dish resting on the hot plate. This supplemental extraction is repeated twice, to' insure the entire removal of the fat from the extracting tube.

\The dish with the solvents of the fat almost entirely evaporated is placed on a hotI plate at 180 C., where all but approximately 2% of the solvents are driven off or evaporated. This remaining 2% of the solvents is driven off. by placing the dish in a vacuum oven at 70 C., carrying at least a 25-inch vacuum for about seven (7 minutes.

After the residue or fat in the dish is perfectly dry, the dish is placed in a special metal desiccator, Where it is'. cooled to the temperature of the chemical balance upon which it was previously weighed, in from four to five minutes. The dish containing the dry residue or fat is then weighed, and from the increase in weight of the dish containing the residue or fat, and the original weight of the sample of milk or dairy product, the percentage or proportion of fat in the sample may be readily'calculated.

The entire test does not require over twenty-live (25) minutes and is accurate to within at least .05% in its results, and does not require heat for the original extraction the result.

What is claimed is:

l. An extraction tube comprising a settling chamber and an extraction chamber communicating through a contraction formed in the tube, and means connected with the contraction for removing the contents of the extraction chamber without disturbing the contents of the settling chamber.

2. An extraction tube comprising an extraction and a settling chamber communieating through a contraction in said tube, and an outlet tube for removing the contents of the extraction chamber.

3. An extraction tube comprising an extraction and a settling chamber communieating through a contraction in said tube, and an outlet or discharge tube connecting with the contraction aforesaid for removing the contents of the extraction chamber without disturbing the contents of the settling chamber.

4. An `extraction tube comprising an extraction and a settling chamber communieating through a contraction in said tube, each chamber terminating at its outer end in ay neck, closures for said necks, and an outlet or discharge tube communicating with the contraction aforesaid.

5. A tube comprising' an upper and a lower chamber communicating one with the other through an open contraction and a fauceted outlet tube cooperating with said contraction for withdrawing the contents of one of said chambers.

6. A flask comprising a tube having its upper and lower ends expanded to create a plurality of inter-communicating chambers, and adischarge means coperating with chambers at the point of communication therebetween.

7. A flask comprising a plurality of chambers, means of communication therebetween, and an outlet extending upwardly at an angle to said means of communication.

8. A iiask comprising a. plurality of chambers, means of communication therebetween, and an outlet tube connecting with and extending upwardly at an angle to said'means of communication.

n testimony whereof, I have hereunto set my hand in the presence of two subscribing Witnesses, on this the 2nd. day of April, A. D. 1915.

JULUSJOHN MOJONNIER. Witnesses: CHARLES S. WILSON,

HERMANN R. MENDIUS. 

